21x-y=3x+27

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Solution for 21x-y=3x+27 equation:


Simplifying
21x + -1y = 3x + 27

Reorder the terms:
21x + -1y = 27 + 3x

Solving
21x + -1y = 27 + 3x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-3x' to each side of the equation.
21x + -3x + -1y = 27 + 3x + -3x

Combine like terms: 21x + -3x = 18x
18x + -1y = 27 + 3x + -3x

Combine like terms: 3x + -3x = 0
18x + -1y = 27 + 0
18x + -1y = 27

Add 'y' to each side of the equation.
18x + -1y + y = 27 + y

Combine like terms: -1y + y = 0
18x + 0 = 27 + y
18x = 27 + y

Divide each side by '18'.
x = 1.5 + 0.05555555556y

Simplifying
x = 1.5 + 0.05555555556y

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